The only Porsche 997.2TT Exhaust system with enough craftsmanship to bear the AWE Tuning name. Behind the work of art are hundreds of hours of prototyping, engineering, research, track testing and daily usage evaluation, outputting what has been called an "epic symphony," "exotic" and "insane." We call it the AWE Tuning 997.2TT Touring Exhaust Solution. German made 200 cell HJS HD metal core catalysts guarantee a check engine light free operation while 3.0" diameter tubing and a H-pipe design give optimal flow and significant Performance gains. In-house designed and built bullet style mufflers help deliver a clean, sophisticated, refined sound, with no drone. AWE Tuning complete 997.2TT Exhaust Solution has been dubbed one of our "sweetest exhausts" to date. Full Exhaust System Highlights: Peak Gains: + 23 hp / + 22 ft lb at the crank with RSR Style Tips Peak Gains: + 15 hp / + 22 ft lb at the crank with OE and Quad Tip Systems 12 lbs weight savings over stock No CEL. Guaranteed. No Drone. Guaranteed. 3.0" tubing with H-Pipe crossover for optimal performance Bullet Style Mufflers, designed and built in-house Heavy duty V-Band clamps T-304 Stainless Steel Tubing Included gaskets One year warranty on Catalytic Converters. Lifetime Warranty on balance of system. Our 997.2TT Exhaust Solution can be used with the stock, our Quad Tips or our RSR Style Tips. Both Quad and RSR Style Tips are available in a Polished Silver or Diamond Black finish. Diamond black is deep and lustrous nickel plating for a sophisticated stealth look. Upgrading to our RSR Style Tips allows 3.0" tubing to be used the entire length of the exhaust resulting in the most power. For the enthusiast looking for solid power gains without straying from the factory sound, we also offer High Flow Cat Sections and Cat Delete Pipes compatible with the OE muffler. As with all AWE Tuning ® exhaust products, each TIG weld is hand finished internally, only butt-welded junctions are used, and flange openings are size matched to their ports, all to produce the smoothest flow possible. It is this intensive attention to detail that sets AWE Tuning ® exhaust products heads and shoulders above the rest. AWE Tuning exhaust systems are hand built award winning works of art and are what your Porsche deserves. Please note that due to the use of high flow catalytic converters, this exhaust is legal only for off road usage.